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Finding the Fourth Proportional to 191,131.76, 263,738.76 and 113,594.96

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Solution

The fourth proportional to 191,131.76, 263,738.76 and 113,594.96 is: 156,747.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,131.76 : 263,738.76 = 113,594.96 : x
  2. Step 2: Convert to fraction form
    191,131.76/263,738.76 = 113,594.96/x
  3. Step 3: Cross multiply
    191,131.76x = 263,738.76 × 113,594.96
  4. Step 4: Simplify right side
    191,131.76x = 29,959,393,892.65
  5. Step 5: Solve for x
    x = 29,959,393,892.65/191,131.76
  6. Step 6: Final answer
    x = 156,747.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.